- computers can't really generate random numbers.
- that is exactly what MATLAB is specified to do:
Why does MATLAB generate identical random values after re-opening the program?
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I run the code below
y = rand(1,5)
and I get the following values:
0.8147 0.9058 0.1270 0.9134 0.6324
I close MATLAB and reopen it again and enter the same code and I get the same random values. Why does MATLAB create the exact same numbers each time?
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채택된 답변
Rightia Rollmann
2018년 7월 24일
댓글 수: 2
Guillaume
2018년 7월 24일
Follow the link in Stephen's comment to get the answer to your question, or do what Madhan told you.
Also, don't use the answer box for comments.
Stephen23
2018년 7월 25일
편집: Stephen23
2018년 7월 25일
"I set rng to 'default', so I expected that it'll generate new random numbers after re-running MATLAB..."
The rng documentation explains that the 'default' option as "This way, the same random numbers are produced as if you restarted MATLAB. The default settings are the Mersenne Twister with seed 0." Clearly with the same seed it will generate exactly the same values each time. That is what it is specified to do!
추가 답변 (1개)
madhan ravi
2018년 7월 24일
편집: madhan ravi
2018년 7월 24일
hi, see the link below:
https://www.mathworks.com/help/matlab/ref/rng.html
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